Potato
Climate:
Growing potatoes requires cool climate. Potatoes grow best in temprature of 15-20(°C). Nevertheless, it has the ability to adapt to a wide range of climate conditions.
The potato grows best in well-drained soils and pH is optimal between 4.8 to 5.8.
The maximum tolerated EC (salinity threshold) is 1.7 dS / m.
Irrigation:
During the early growth phase, until tuber formation, it is essential to keep the soil constantly and uniformly wet to a depth of at least 10-15cm. The frequency of irrigation cycles during this period should be determined according to the specific soil type and climate conditions.
During the second growth phase, during tuber development, irrigation will be less frequent and applied once every 3-5 days. This allows efficient root respiration and intensifying growth rate. Potatoes can be irrigated almost until harvest.
Nutrition
Nitrogen: One of the most important nutrients, that is required in relatively high quantities for achieving high yields. Nitrogen is required especially in the initial stage of the vegetative growth.
Excess of nitrogen might cause excessive foliage growth, at the expense of tuber growth.
Under many conditions, nitrate nitrogen is preferred over ammonium nitrogen.
Phosphorus: Encourages root growth and tuber formation. Adequate supply of phosphorus is important in the tuber initiation stage.
Potassium: Potatoes have a very high potasium requirements. 50% is required at tuber innitiation. Fundamental in metabolic processes and disease prevention. Potassium deficiency result in reduced yields.